CN102484926A - Optical lighting device and optical recording device - Google Patents
Optical lighting device and optical recording device Download PDFInfo
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- CN102484926A CN102484926A CN201080024837XA CN201080024837A CN102484926A CN 102484926 A CN102484926 A CN 102484926A CN 201080024837X A CN201080024837X A CN 201080024837XA CN 201080024837 A CN201080024837 A CN 201080024837A CN 102484926 A CN102484926 A CN 102484926A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
- H05B45/22—Controlling the colour of the light using optical feedback
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
An optical lighting device includes a radiation detector, a first light source and a second light source. The radiation detector includes a semiconductor chip and an optical filter, and has a spectral sensitivity distribution. The first light source generates white radiation. The second light source generates monochrome radiation in the visible spectral range, wherein radiation emitted by the first light source and radiation emitted by the second light source are superimposed to yield mixed radiation which includes a wavelength spectrum. The wavelength spectrum of the mixed radiation is adapted to the spectral sensitivity distribution of the radiation detector.
Description
Present patent application requires the priority of German patent application 10 2,009 024 069.1, and its disclosure is incorporated into this by reference.
The present invention relates to a kind of optical lighting device, it has radiation detector, first light source and secondary light source.This optical lighting device is particularly suited for using and in recording equipment or with recording equipment, uses.
In publication DE 10 2,007 042 573 A1, disclose a kind of optical lighting device, it has detector, light source and control device.Control device is suitable for regulating the spectral characteristic by the radiation of light emitted according to the characteristic spectral emission of surround lighting.
In this lighting apparatus, by the spectral characteristic of the light of light emitted and the characteristic spectral emission coupling of surround lighting.Especially, the illumination of lighting apparatus is regulated on like environment illumination ground as far as possible.Yet can limit thus by the efficient that illuminates the aspect of light source to radiation detector.
The present invention based on task be to propose a kind of improved optical lighting device, its characteristic especially is effectively illuminating of radiation detector.In addition, task of the present invention is to propose a kind of optical recording apparatus with this optical lighting device.
These tasks are the optical lighting device through having the said characteristic of claim 1 and solve through the optical recording apparatus with the described characteristic of claim 10 especially.The advantageous forms of implementation of lighting apparatus and recording equipment and advantageous modification are the themes of dependent claims.
Design optical lighting device according to the present invention, it has radiation detector, first light source and secondary light source.Radiation detector comprises semiconductor chip and optical light filter, and has the radiosusceptibility distribution.First light source is suitable for producing white radiation.Secondary light source is suitable for being created in the monochromatic radiation in the limit of visible spectrum, wherein is superimposed as mixed radiation by the radiation of first light emitted with by the secondary light source radiation emitted, and it has wave spectrum.The wave spectrum of mixed radiation and the spectral sensitivity of radiation detector distribute and mate.
At this, especially the change curve of the spectral sensitivity of the change curve of the wave spectrum of mixed radiation and radiation detector distribution matees.
Preferably, first light source is suitable for producing white radiation, wherein by the radiation of first light emitted have 450nm in the wave-length coverage that (comprises end value) the 700nm continuously or approximately continuous radiation.First light source so preferred emission have the radiation of the continuous spectrum in visible wavelength region.
Radiation detector for example is following detector, and it has the different portions zone, and it is suitable for detecting redness, green or blue radiation, promptly so-called redness, green and blue pixel.At this, preferably, each pixel is equipped with the filter of oneself, and it is corresponding to corresponding color: red, green or blue.
Secondary light source is suitable for being created in the monochromatic radiation in the limit of visible spectrum.At this, might not be necessary be: secondary light source is the radiation of emission wavelength ranges only.For example; Secondary light source can be following chip; It is transmitted in the radiation in the blue spectral range and has conversion layer; This conversion layer will convert red radiation to by the chip radiation emitted, make and not compare the wideer spectrum of formation by the secondary light source radiation emitted with the blue chip of conversion layer.
The wave spectrum of the mixed radiation that distributes with the spectral sensitivity with radiation detector is compared, and wave spectrum and spectral sensitivity distribution are preferably respectively by normalization.For this reason, for example the maximum of corresponding spectrum normalizes to 1.Can be as an alternative, the wave spectrum of mixed radiation distributes according to the spectral sensitivity of radiation detector and regulates.
Advantageously can wave spectrum and spectral sensitivity be distributed relatively through normalization or adjusting.
Especially, preferably be limited to limit of visible spectrum in this observation to corresponding spectrum.
As long as do not explain difference, then this specification correspondingly relates to spectral sensitivity or wave spectrum normalized or that regulated.
For good coupling, be regarded as be fully: wave spectrum distributes corresponding to spectral sensitivity to a great extent.The complete consistent of wave spectrum and sensitivity profile might not be necessary.Or rather, should realize the coupling as well as possible that distributes with spectral sensitivity.
Especially, the optical light filter of the wave spectrum of mixed radiation and detector coupling.If detector for example is chip with redness, green and blue pixel (wherein each pixel is according to corresponding color: red, green and blue have own filter), then the wave spectrum of mixed radiation preferably matees with the transmission feature of each filter.Simultaneously, advantageously provided the continuous white spectrum of mixed radiation.
Lighting apparatus comprises at least two light sources, and it launches the radiation of different chromaticity coordinates.In service at lighting apparatus, different radiation is superimposed as the mixed radiation with wave spectrum.According to the intensity of its radiation of light emitted, especially can regulate the change curve of the wave spectrum of mixed radiation.
For example can regulate at this by the intensity of the radiation of light emitted respectively by current's intensity to these light source power supplies.At this, current strength is big more, and then the intensity of institute's radiation emitted is high more.
Can be as an alternative, can regulate by pulse-width modulation by the intensity of the radiation of light emitted respectively.
The wave spectrum of mixed radiation preferably matees by the sensitivity profile of control device and radiation detector.Especially, radiation detector is in operation and has the spectral sensitivity distribution.The value of control device processing and detecting device, especially spectral sensitivity distribute, and are in operation and regulate the wave spectrum by the mixed radiation of light emitted, make its spectral sensitivity with radiation detector distribute and mate.Control device for example is a microcontroller.
At this advantageously, disposable adjusting is just enough.If by the wave spectrum of the mixed radiation of light emitted by control device once with the spectral sensitivity of the radiation detector coupling that distributes; Then another coupling is as being unnecessary required in traditional lighting apparatus for example, and this another coupling is correspondingly mated the radiation of light source with surround lighting.
The distribute lighting apparatus of coupling of the wave spectrum through mixed radiation wherein and the spectral sensitivity of radiation detector has advantageously improved the efficient of lighting apparatus.Especially, the effective irradiation of radiation detector can realize by light source.
According at least one form of implementation of optical lighting device, the wave spectrum of mixed radiation has approximately continuous or continuous spectrum in limit of visible spectrum.
Follow to continuous spectra part the spectrum of black matrix.Therefore the spectrum of the especially similar black matrix of approximately continuous spectrum only has the little deviation with the spectrum of black matrix.
Continuous perhaps approximately continuous spectrum through mixed radiation advantageously can be realized illumination radiation detector effectively.Especially, the wave spectrum of mixed radiation matees with the spectral sensitivity distribution of radiation detector with improvement.
Preferably, the wave spectrum of mixed radiation does not have the gap in limit of visible spectrum.The gap for example is interpreted as for example intensity decreases of strength fluctuation strong in the one or more wave-length coverages in wave spectrum.
Preferably, the color rendering of the wave spectrum of mixed radiation and detector is complementary.Particularly preferably, the color rendering of the wave spectrum of mixed radiation and radiation detector and spectral sensitivity distribute and mate.For the coupling of color rendering, especially the continuous spectrum of mixed radiation is favourable.The coupling of the change curve of wave spectrum for example can realize by the intensity adjustments of secondary light source, secondary light source emission monochromatic radiation.
According at least one form of implementation of optical lighting device, first light source is a light-emitting diode chip for backlight unit.This light-emitting diode chip for backlight unit especially is suitable for producing white radiation.For example; First light source has light-emitting diode; It has semiconductor layer sequence and the conversion layer that is provided with above that; Wherein the semiconductor layer sequence is suitable for being transmitted in the radiation in the blue spectral range, and conversion layer is suitable for the radiation in blue spectral range is converted into feasible by stack formation white radiation.For example, conversion layer will convert yellow radiation to by the blue radiation of semiconductor layer sequence emission.The radiation of changing is not limited to yellow radiation at this.Equally, be contemplated that conversion layer is suitable for converting green radiation or red radiation to by semiconductor layer sequence radiation emitted.
Can be as an alternative, first light source can be an xenon lamp.
According at least one form of implementation of optical lighting device, secondary light source is the light-emitting diode chip for backlight unit that is transmitted in the monochromatic radiation in the red color spectrum range.
Equally, the light-emitting diode chip for backlight unit that can consider to launch the monochromatic radiation in green spectral range or blue spectral range for example is as secondary light source.Especially the characteristic that depends on radiation detector by the selection in the look district of secondary light source radiation emitted.
Mixed radiation is for example formed by the stack of white radiation and red radiation.Intensity according to first light source and/or its radiation of secondary light source emission can be regulated wave spectrum, especially matees with the spectral sensitivity distribution of radiation detector.If distributing, the spectral sensitivity of radiation detector for example has red component; Then the high current intensity through secondary light source can improve the intensity of red radiation and improve the red component of mixed radiation thus, and wherein secondary light source is suitable for being transmitted in the radiation in the red color spectrum range.
Especially, in this case, confirm that the red radiation of ratio can be mixed to mixed radiation.Through by on the predetermined period to secondary light source with the power supply of given in advance current strength and on purpose add red radiation, especially can compensate lacking of red radiation in the mixed radiation.In a word, the wave spectrum of mixed radiation can advantageously mate with the spectral sensitivity of radiation detector like this.
According at least one form of implementation of optical lighting device, wave spectrum is average and the spectral sensitivity distribution bias is the highest by 40%.Preferably, the wave spectrum average deviation is the highest by 20%.Under the ideal situation, the wave spectrum of mixed radiation is adjusted to and makes its spectral sensitivity that in the error tolerance scope of radiation detector, first light source and secondary light source, equals radiation detector distribute.Preferably, the normalization spectrum in this wave spectrum and sensitivity profile is observed.
According at least one form of implementation of optical lighting device, area matched under the curve of the sensitivity profile of area under the curve of the wave spectrum of mixed radiation and detector.To attach the area of covering big more for the curve of the sensitivity profile of device to be detected under the curve of the wave spectrum of mixed radiation, and then the efficient aspect the illuminating of radiation detector is just advantageously high more.
According at least one form of implementation of optical lighting device, lighting apparatus further has the 3rd light source, is used for being created in the monochromatic radiation of limit of visible spectrum, and wherein the monochromatic radiation of the 3rd light source is different with the monochromatic radiation of secondary light source.
For example, secondary light source is suitable for producing red radiation and the 3rd light source is suitable for producing green radiation.
At least one form of implementation according to optical lighting device; Lighting apparatus also has the 4th light source; Be used for being created in the monochromatic radiation of limit of visible spectrum, wherein the monochromatic radiation of the monochromatic radiation of the monochromatic radiation of the 4th light source and the 3rd radiation and secondary light source is different.
For example, first light source is first light-emitting diode chip for backlight unit, and it launches white radiation; Secondary light source is second light-emitting diode chip for backlight unit; It is transmitted in the radiation in the red color spectrum range, and the 3rd light source is the 3rd light-emitting diode chip for backlight unit, and it is transmitted in the radiation in the green spectral range; And the 4th light source is the 4th light-emitting diode chip for backlight unit, and it is transmitted in the radiation in the blue spectral range.
Therefore optical lighting device has white led chip and RGB-LED in the case.Be superimposed as mixed radiation altogether by each light-emitting diode chip for backlight unit radiation emitted with wave spectrum.
Can change, especially be adjusted in the wave spectrum in the different spectral regions according to the power supply of each RGB-LED through RGB-LED.If distributing, the spectral sensitivity of radiation detector for example has the high strength in red color spectrum range; Yet in green spectral range, has low-intensity, through make the spectral sensitivity distribution coupling of the wave spectrum and the radiation detector of mixed radiation to the high current strength of red light emitting diodes chip power supply with to the low current strength of green LED chip power supply.
According at least one form of implementation of optical lighting device, the spectral sensitivity of radiation detector distributes and the spectral sensitivity distribution of human eye is mated.
For matched well, being regarded as enough is that the spectral sensitivity of radiation detector is distributed in to a great extent the spectral sensitivity corresponding to human eye.
The complete consistent of spectral sensitivity might not be essential.
For the spectral sensitivity of radiation detector is distributed with the spectral sensitivity of human eye relatively, what conform with purpose is, makes two sensitivity profile couplings, makes it by normalization.
The spectral sensitivity of the human eye of light adaptation distributes and especially has the maximum in the sensitivity at about λ=555nm place.The spectral sensitivity maximum of scotopic eyes is greatly about λ=500nm place.Therefore radiation detector especially makes up the sensitivity that is used for according to human eye and detects radiation, and it has the sensitivity maxima of locating or locating greater than λ=500nm (dark adaptation, observe night) at about λ=555nm (light adaptation is observed in the daytime).This radiation detector is for example open in publication DE 10 2,004 037020 A1 and publication DE 10 245 410 A1, and its disclosure is attached in the specification at this clearly by reference.
In addition, a kind of optical recording apparatus of described optical lighting device here that has has been proposed.The optical lighting device of this recording equipment makes up disclosed as combining one of above-mentioned form of implementation at this.That is to say that all combine the disclosed characteristic of optical lighting device with regard to the lighting apparatus of recording equipment, also to be disclosed, vice versa.
According at least one form of implementation of optical recording apparatus, optical recording apparatus is one of following equipment: mobile phone, camera, video camera.
According at least one form of implementation of optical recording apparatus, first light source is a photoflash lamp.Therefore first light-emitting diode chip for backlight unit is suitable for producing the photoflash lamp with definite illumination duration.Preferably, in optical recording apparatus, be provided with like lower device, its be suitable for for this period to first led powered.This device for example can be a pulse-width modulation circuit.
Can be as an alternative, first light-emitting diode can for example be used as the illumination of video camera as continuing illumination.At this, light source for example can be regulated by pulse-width modulation, makes only emitted radiation when taking of light source.
According at least one form of implementation of optical recording apparatus, secondary light source is as the illumination of autofocus device.Secondary light source is therefore additional to be used to regulate optical system, make can reference object picture rich in detail.
According at least one form of implementation of optical recording apparatus, secondary light source is configured to the shooting indicating device.It is especially also known with term " privacy light (Privacy Light) " to take indicating device.It is taken in particular for signaling the other side for it.
According at least one form of implementation of optical recording apparatus, secondary light source is the pre-flash device, and it reduces red-eye effect.So secondary light source is as the pre-flash device, so that reduce the red-eye effect when pictures taken.Preferably, secondary light source is suitable for being transmitted in this case the radiation in the red color spectrum range.So secondary light source can be as the pre-flash device of special protection eyes.
Other characteristics of optical lighting device and optical recording apparatus, advantage, preferred expansion scheme and conform with purpose from below in conjunction with obtaining the embodiment that Fig. 1 to 5 set forth.
Wherein:
Fig. 1 shows the explanatory view according to the embodiment of optical recording apparatus of the present invention that has according to lighting apparatus of the present invention,
Fig. 2 A, 2B show the explanatory view according to the embodiment of the part of optical lighting device of the present invention respectively, and
Fig. 3 to 5 shows the explanatory view according to the additional embodiments of optical recording apparatus of the present invention that has according to lighting apparatus of the present invention respectively.
Identical or act on identical part and be respectively arranged with identical Reference numeral.Shown part and part magnitude relationship to each other can not be regarded as conforming with ratio.
The explanatory view of optical recording apparatus has been shown in Fig. 1, and it has the optical lighting device 1 that has radiation detector 10.Radiation detector 10 especially comprises semiconductor chip and optical light filter and has spectral sensitivity and distributes.
Preferably, the distribution of the spectral sensitivity of radiation detector 10 is mated with the spectral sensitivity of human eye.Especially, the distribution of the spectral sensitivity of radiation detector 10 is mated with the human eye or the scotopic human eye of light adaptation.
Preferably, optical recording apparatus has area L, in this zone, is provided with the light source 21,22 that is used to throw light on.In the embodiment in figure 1, the secondary light source 22 that two first light sources 21 that are used for producing white radiation and are used to be created in the monochromatic radiation of limit of visible spectrum especially is set.Preferably, secondary light source 22 is arranged between first light source 21.
In service at optical recording apparatus, be superimposed as mixed radiation by first light source, 21 radiation emitted with by secondary light source 22 radiation emitted, it has wave spectrum.
Preferably, the spectral sensitivity of the wave spectrum of mixed radiation and radiation detector 10 distributes and matees.At this, for the wave spectrum of mixed radiation and the spectral sensitivity of radiation detector 10 are distributed relatively and preferred normalization.
Preferably, wave spectrum is the highest by 40% with the spectral sensitivity distribution bias on average.Particularly preferably, wave spectrum is the highest by 20% in the average upper deviation.
Mate through the wave spectrum of mixed radiation and the spectral sensitivity distribution of radiation detector 10, advantageously can realize effective irradiation through first light source and 21,22 pairs of radiation detectors 10 of secondary light source.The realization that effectively lighting apparatus 1 and therefore effective recording equipment can be favourable.
Preferably, the wave spectrum of mixed radiation has approximately continuous or continuous spectrum in visible spectrum.Advantageously can realize with improvement, illuminate especially effectively radiation detector 10 thus.
Preferably, first light source 21 is light-emitting diode chip for backlight unit or xenon lamp.For example, first light source 21 has respectively: light-emitting diode chip for backlight unit, and it has the semiconductor layer sequence of the radiation that is transmitted in the blue spectral range; And conversion layer or cast thing, it has transition material, and converts the radiation in blue spectral range to the for example radiation in the yellow spectrum scope.Like this, can realize the White LED chip.
Preferably, secondary light source 22 is light-emitting diode chip for backlight unit, and it is transmitted in the monochromatic radiation in the red spectral region.Especially can red radiation that confirm ratio be mixed in the white radiation of first light source 21 thus.Especially can compensate the lacking of red radiation of first light source 21 through on purpose adding red radiation.In a word, so the wave spectrum of mixed radiation can be advantageously and the spectral sensitivity of radiation detector 10 coupling that distributes.
Especially, the wave spectrum of mixed radiation can be regulated according to the intensity of each light source 21,22 its radiation of emission.Intensity by one of light source 21,22 radiation emitted can be for example by the current strength of these light source 21,22 power supplies is regulated at this.Big more in this current strength, then the intensity of institute's radiation emitted is high more.
The optical recording apparatus of Fig. 1 for example is camera or mobile phone.Preferably, in this case first light source 21 is respectively a photoflash lamp.Secondary light source 22 is arranged between two photoflash lamps at this.Preferably, secondary light source 22 is configured to the shooting indicating device, so be configured to so-called " privacy light ".Should " privacy light " can be designed in such a way that its connection when the flash of light operation of recording equipment.Thus, advantageously can the red light of glistening and lacking be provided, make the wave spectrum of mixed radiation and the spectral sensitivity distribution of radiation detector 10 mate by " privacy light ".
Can be as an alternative, optical recording apparatus can be a video camera.In this case, secondary light source 22 can be constructed as the shooting indicating device, so-called " video light ".The light that " video light " especially continues or glimmers, the operation of its displayed record equipment or video camera.
First light source and secondary light source 21,22 specific arrangements relative to each other have been shown in Fig. 2 A and 2B.Especially, Fig. 2 A and 2B show the embodiment that the light in area L is arranged, light is arranged and for example can be used in the recording equipment in Fig. 1.
In Fig. 2 A, two first light sources 21 are provided with abreast, and it is particularly suited for producing white light.Preferably, first light source 21 is led chips.In addition, secondary light source 22 vertically is arranged on first light source 21, and this secondary light source especially is transmitted in the radiation in the red color spectrum range.Secondary light source 22 for example is arranged between first light source 21, and vertically is arranged on first light source 21.For example, secondary light source 22 is used as the illumination of autofocus device in the embodiment of Fig. 2 A.
Another embodiment of first light source and secondary light source 21,22 layout to each other has been shown in Fig. 2 B.Different with the embodiment shown in Fig. 2 A, secondary light source 22 is set directly between first light source 21.Vertical range between first light source 21 and secondary light source 22 does not exist in the case.
In the embodiment of Fig. 2 B, secondary light source 22 for example is the pre-flash device, and it has lowered red-eye effect.Can be as an alternative, secondary light source 22 can be constructed as the shooting indicating device.
In the embodiment of Fig. 2 A and 2B, first light source 21 is respectively a photoflash lamp.
Show another recording equipment in the embodiments of figure 3.Different with the embodiment shown in Fig. 1, the embodiment shown in Fig. 3 only has one first light source 21.Radiation detector 10 is started from this embodiment 3 and is known reason and not shown.
In the embodiments of figure 3, secondary light source 22 is as the illumination of autofocus device.As shown in Fig. 3, first light source 21 is received secondary light source 22.First light source 21 is the throw light on light of videograph of photoflash lamp or be used to especially.
Therefore recording equipment has White LED as photoflash lamp and the additional red LED conduct illumination of focusing equipment automatically.Red LED can be designed to make it that red composition is provided except the white radiation of first light source 21 when photoflash lamp moves at this.The mixed radiation that obtains thus preferably matees with the spectral sensitivity distribution of radiation detector.
In addition, the embodiment of the embodiment of Fig. 3 and Fig. 1 is consistent.
Another embodiment of optical recording apparatus has been shown in Fig. 4.Different with embodiment shown in Figure 3, the recording equipment of Fig. 4 has two secondary light sources 22.First light source 21 especially is arranged between two secondary light sources 22 at this.
First light source 21 is photoflash lamp preferably.The radiation of secondary light source 22 preferred emission in red color spectrum range.For example, secondary light source 22 is configured to the illumination that is used for autofocus device, is configured to and takes indicating device or be configured to the pre-flash device.
After this, in the embodiment of Fig. 4, add a plurality of color LEDs, especially red LED, photoflash lamp.Thus, can advantageously improve illuminating of efficient, especially radiation detector.Especially, so the wave spectrum of the mixed radiation that the red radiation of the white radiation of first light source 21 and secondary light source 22 constitutes can be preferably and the spectral sensitivity of the radiation detector coupling with improvement that distributes.
The embodiment of Fig. 5 is different with the embodiment of Fig. 4 to be, the recording equipment of the 3rd light source 23 has the 3rd light source 23, is used for being created in the monochromatic radiation of limit of visible spectrum, and wherein the monochromatic radiation of the 3rd light source is different with the monochromatic radiation of secondary light source.Especially, the embodiment of Fig. 5 only has a secondary light source 22.
Preferably, secondary light source 22 emission red radiation and the 23 transmitting green radiation of the 3rd light source.Especially, the LED of a plurality of arbitrary hue can add first light source 21, especially photoflash lamp to.Thus, the wave spectrum of the mixed radiation of each light source 21,22,23 can be by the power supply of each light source 21,22,23 in the different spectrum scope and the spectral sensitivity of radiation detector are distributed and/or the color rendering coupling.
In addition, optical lighting device 1 can have the 4th light source, is used for being created in the monochromatic radiation (not shown) of limit of visible spectrum.Preferably; First light source is first light-emitting diode chip for backlight unit in this case, and it launches white radiation, and secondary light source is second light-emitting diode chip for backlight unit; It is transmitted in the radiation in the red color spectrum range; The 3rd light source is the 3rd light-emitting diode chip for backlight unit, and its radiation and the 4th light source that is transmitted in the green spectral range is the 4th light-emitting diode chip for backlight unit, and it is transmitted in the radiation in the blue spectral range.
Therefore optical lighting device 1 has white led chip 21 and RGB-LED in this case.Can be through RGB-LED according to the wavelength radiation that the power supply of each RGB-LED is changed, especially regulates and mate the mixed radiation in each monochromatic spectrum scope.If distributing, the spectral sensitivity of radiation detector for example has the high strength in red color spectrum range; And the low-intensity in blue spectral range then can mate the wave spectrum of mixed radiation and spectral sensitivity through the high current intensity of red LED chips and the low current intensity of blue led chip.
The present invention is not confined to it through the description according to embodiment; But comprise the combination in any of any new feature and characteristic; This especially is included in the combination in any of the characteristic in the claim, even these characteristics or these combinations itself do not offer some clarification in claim or embodiment.
Claims (15)
1. an optical lighting device (1) has:
-radiation detector (10), it comprises semiconductor chip and optical light filter, and
Have spectral sensitivity and distribute,
-be used to produce first light source (21) of white radiation, and
-be used for being created in the secondary light source (22) of the monochromatic radiation of limit of visible spectrum, wherein be superimposed as mixed radiation by first light source (21) radiation emitted with by secondary light source (22) radiation emitted, it has wave spectrum, and wherein
The spectral sensitivity of the wave spectrum of-mixed radiation and radiation detector (10) distributes and matees.
2. optical lighting device according to claim 1, the wherein change curve of the spectral sensitivity of the change curve of the wave spectrum of mixed radiation and/or color rendering and radiation detector (10) distribution and/or color rendering coupling.
3. optical lighting device according to claim 1 and 2, wherein the wave spectrum of mixed radiation has approximately continuous or continuous spectrum in limit of visible spectrum.
4. according to one of aforesaid right requirement described optical lighting device, wherein first light source (21) is light-emitting diode chip for backlight unit or xenon lamp.
5. according to one of aforesaid right requirement described optical lighting device, wherein secondary light source (22) is a light-emitting diode chip for backlight unit, and it is transmitted in the monochromatic radiation in the red color spectrum range.
6. one of require described optical lighting device according to aforesaid right, have the 3rd light source (23) of the monochromatic radiation that is used for being created in limit of visible spectrum, wherein the monochromatic radiation of the 3rd light source (23) is different with the monochromatic radiation of secondary light source (22).
7. optical lighting device according to claim 6; The 4th light source with the monochromatic radiation that is used for being created in limit of visible spectrum, wherein the monochromatic radiation of the monochromatic radiation of the monochromatic radiation of the 4th light source and the 3rd light source (23) and secondary light source (22) is different.
8. optical lighting device according to claim 7, wherein first light source (21) is first light-emitting diode chip for backlight unit, it launches white radiation; Secondary light source (22) is second light-emitting diode chip for backlight unit; Radiation in its emission red color spectrum range, the 3rd light source (23) is the 3rd light-emitting diode chip for backlight unit, it is transmitted in the radiation in the green spectral range; And the 4th light source be the 4th light-emitting diode chip for backlight unit, it is transmitted in the radiation in the blue spectral range.
9. according to one of aforesaid right requirement described optical lighting device, wherein the distribution of the spectral sensitivity of radiation detector (10) is mated with the spectral sensitivity distribution of human eye.
10. optical recording apparatus, it has according to the described optical lighting device of one of aforesaid right requirement 1 to 9 (1).
11. optical recording apparatus according to claim 10, wherein optical recording apparatus is one of following equipment: mobile phone, camera, video camera.
12. according to one of aforesaid right requirement 10 or 11 described optical recording apparatus, wherein first light source (21) is a photoflash lamp.
13. according to one of aforesaid right requirement 10 to 12 described optical recording apparatus, wherein secondary light source (22) is with the illumination of doing autofocus device.
14. according to one of aforesaid right requirement 10 to 12 described optical recording apparatus, wherein secondary light source (22) is configured to the shooting indicating device.
15. according to one of aforesaid right requirement 10 to 12 described optical recording apparatus, wherein secondary light source (22) is the pre-flash device, it lowers red-eye effect.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009024069A DE102009024069A1 (en) | 2009-06-05 | 2009-06-05 | Optical lighting device and optical recording device |
| DE102009024069.1 | 2009-06-05 | ||
| PCT/DE2010/000539 WO2010139294A1 (en) | 2009-06-05 | 2010-05-14 | Optical lighting device and optical recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102484926A true CN102484926A (en) | 2012-05-30 |
| CN102484926B CN102484926B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080024837.XA Expired - Fee Related CN102484926B (en) | 2009-06-05 | 2010-05-14 | Optical lighting device and optical recording device |
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| Country | Link |
|---|---|
| US (1) | US8639104B2 (en) |
| EP (1) | EP2438797B8 (en) |
| JP (1) | JP2012529134A (en) |
| KR (1) | KR101690142B1 (en) |
| CN (1) | CN102484926B (en) |
| DE (1) | DE102009024069A1 (en) |
| WO (1) | WO2010139294A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413837A (en) * | 2020-05-27 | 2020-07-14 | 福清市鸿扬电子科技有限公司 | Portable photographic light filling device |
| CN113853511A (en) * | 2019-05-21 | 2021-12-28 | 奥斯兰姆奥普托半导体股份有限两合公司 | Photoelectric measuring device for measuring the intensity of electromagnetic radiation |
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| DE102009047788A1 (en) * | 2009-09-30 | 2011-03-31 | Osram Opto Semiconductors Gmbh | Lighting device for a camera and method for operating the same |
| US20210264639A1 (en) * | 2018-11-14 | 2021-08-26 | Hewlett-Packard Development Company, L.P. | Determination of defects in light sources integrated with cameras |
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- 2010-05-14 EP EP20100725003 patent/EP2438797B8/en not_active Not-in-force
- 2010-05-14 KR KR1020127000183A patent/KR101690142B1/en active IP Right Grant
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102484926B (en) | 2014-06-25 |
| EP2438797A1 (en) | 2012-04-11 |
| KR101690142B1 (en) | 2016-12-27 |
| US8639104B2 (en) | 2014-01-28 |
| WO2010139294A1 (en) | 2010-12-09 |
| DE102009024069A1 (en) | 2010-12-09 |
| JP2012529134A (en) | 2012-11-15 |
| EP2438797B8 (en) | 2015-04-29 |
| US20120114321A1 (en) | 2012-05-10 |
| KR20120027045A (en) | 2012-03-20 |
| EP2438797B1 (en) | 2015-02-25 |
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